Random Useful Sites. Not sure where to put them yet.
Windows
Networking
Lots of useful information on all cyber security subjects.
https://isc.sans.edu
https://www.tutorialspoint.com/index.htm
Internet Security and Data Mining
https://www.netcraft.com/
RFC repository
http://www.rfc-base.org/
https://tools.ietf.org/rfc/index
https://github.com/maestron/reverse-engineering-tutorials
I wish I had this guy as my teacher. Cyber Security Training from a very knowledgeable person.
https://samsclass.info/
https://github.com/trimstray/awesome-ninja-admins
https://www.red-gate.com/simple-talk/blogs/anatomy-of-a-net-assembly-pe-headers/